Unreal Engine 4.26 Documentation

Unreal Engine 4.27 Documentation

Unreal Engine 5.0 Documentation

Unreal Engine 5.1 Documentation

Unreal Engine 5.2 Documentation

Unreal Engine 5.3 Documentation

> Unreal Engine API Reference > Runtime > Engine > Materials > UMaterialExpressionFunctionOutput

Light Theme

Dark Theme

UMaterialExpressionFunctionOutput

Windows

MacOS

Linux

Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

UMaterialExpression

UMaterialExpressionFunctionOutput

UMaterialExpressionMaterialLayerOutput

References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionFunctionOutput.h
Include	#include "Materials/MaterialExpressionFunctionOutput.h"

Syntax

class UMaterialExpressionFunctionOutput : public UMaterialExpression

Variables

	Name	Description
FExpressionInpu...	A	Stores the expression in the material function connected to this output.
uint32: 1	bLastPreviewed	Whether this output was previewed the last time this function was edited.
FString	Description	The output's description, which will be used as a tooltip on the connector in function call expressions that use this function.
FGuid	Id	Id of this input, used to maintain references through name changes.
FName	OutputName	The output's name, which will be drawn on the connector in function call expressions that use this function.
int32	SortPriority	Controls where the output is displayed relative to the other outputs.

Constructors

	Name	Description
	UMaterialExpressionFunctionOutput ( const FObjectInitializer& ObjectIn... )

Functions

		Name	Description
	void	ConditionallyGenerateId ( bool bForce )	Generate the Id for this input.
	void	ValidateName()	Validate OutputName. Must be called after OutputName is changed to prevent duplicate outputs.

Overridden from UMaterialExpression

	Name	Description
int32	Compile ( FMaterialCompiler* Compiler, int32 OutputIndex )	Create the new shader code chunk needed for the Abs expression
void	GetCaption ( TArray< FString >& OutCaptions )	Returns the text to display on the material expression (in the material editor).
void	GetExpressionToolTip ( TArray< FString >& OutToolTip )	Get a tooltip for the expression itself.
FName	GetInputName ( int32 InputIndex )
uint32	GetInputType ( int32 InputIndex )
bool	IsResultMaterialAttributes ( int32 OutputIndex )	Marks certain expression types as outputting material attributes.

Overridden from UObject

	Name	Description
void	PostDuplicate ( bool bDuplicateForPIE )	Called after duplication & serialization and before PostLoad.
void	PostEditChangeProperty ( FPropertyChangedEvent& PropertyCha... )	Called when a property on this object has been modified externally
void	PostEditImport()	Called after importing property values for this object (paste, duplicate or .t3d import) Allow the object to perform any cleanup for properties which shouldn't be duplicated or are unsupported by the script serialization
void	PostLoad()	Do any object-specific cleanup required immediately after loading an object.
void	PreEditChange ( FProperty* PropertyAboutToChan... )	This is called when a property is about to be modified externally

Help shape the future of Unreal Engine documentation! Tell us how we're doing so we can serve you better.

Take our survey

Dismiss